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Finding the Fourth Proportional to 556,921.92, 768,553.08 and 302,273.20

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Solution

The fourth proportional to 556,921.92, 768,553.08 and 302,273.20 is: 417,137.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,921.92 : 768,553.08 = 302,273.20 : x
  2. Step 2: Convert to fraction form
    556,921.92/768,553.08 = 302,273.20/x
  3. Step 3: Cross multiply
    556,921.92x = 768,553.08 × 302,273.20
  4. Step 4: Simplify right side
    556,921.92x = 232,312,998,861.46
  5. Step 5: Solve for x
    x = 232,312,998,861.46/556,921.92
  6. Step 6: Final answer
    x = 417,137.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.